Linux Kernel  3.7.1
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ad7780.h
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1 /*
2  * AD7780/AD7781 SPI ADC driver
3  *
4  * Copyright 2011 Analog Devices Inc.
5  *
6  * Licensed under the GPL-2.
7  */
8 #ifndef IIO_ADC_AD7780_H_
9 #define IIO_ADC_AD7780_H_
10 
11 /*
12  * TODO: struct ad7780_platform_data needs to go into include/linux/iio
13  */
14 
15 /* NOTE:
16  * The AD7780 doesn't feature a dedicated SPI chip select, in addition it
17  * features a dual use data out ready DOUT/RDY output.
18  * In order to avoid contentions on the SPI bus, it's therefore necessary
19  * to use spi bus locking combined with a dedicated GPIO to control the
20  * power down reset signal of the AD7780.
21  *
22  * The DOUT/RDY output must also be wired to an interrupt capable GPIO.
23  */
24 
28 };
29 
30 #endif /* IIO_ADC_AD7780_H_ */